Mixer



Nov. 22, 1927. l 649 816 B. E. EARLE MIXER Filed Dec. 16. 1926 3 Sheets-Sheet l nun" FEED canvEv-R /6 ("DISTRIBUTING ASPHALT KETTLE .z v INVENTOR.

BAYLl/S E. mm

% ATTORNE Nov. 22, 1927.

MIXER Filed Dec. 1 192 3 Sheets-Sheet?! ,24 INVENTOR. F15 -Z- BAYLUS .5. 5/1/ 545,

A TTORNE Y.

9,816 8- E; EARLE v Nov. 22, 1927.

1,649,816 8. E. EARLE MIXER Filed D c, 1 192 3 Sheets-Sheet 3 v INVENTOR. BAYM/J [f 0m ATTORNEY.

Patented Nov. 22, 1927.

UNITED STATES PATENT" orriea,

BAYLUS E ma, or nArivILLE, ILLINOIS.

Application filed December 16, 1926. Serial No. 155,1405

ing operationbe carried'out While the asphalt is kept at, the boiling point orat a relatively high temperature.- More particularly it is my purpose to evenly distribute the filler (clay dust or thelike) over the surface of the asphalt in the kettle, to heat the. asphalt and keep it at or above the boilingpoint, and to a'gitatethe contents'of the kettlethorou'ghly and uniformly by air and steam. Other devices. With which 11am acquainted and some of which purport to'accomplish a'sirni lar end do not provide,.amongother things, means for preventing clogging of the vent of the. pneumatic agitators, nor can the filler material be uniformly and properlydistrib uted over the surface of the asphalt body.

I prevent clogging of my apparatus by utilizing a combination of live steam and air, or either steam alternately with-air to agitate the asphaltic mix thereby eliminating clogging of thevents of my agitating mech- 36 anism, and attaining amore homogeneous mass. Uniform distribution of the filler is attained in my apparatus by progressively discharging the same over a large portion (or the Whole) surface of the asphalt in the 4 kettle at a point slightly above the surface thereof; adjustable meansbeing provided to regulate the height of the filler discharge means from the'surface. of the asphalt'which gradually rises as the boil is producedfand the mix carried out. It is also one of the advantages of my invention-that all parts are readily set up and operated With a consequent saving inlabor and material. I c f Other and equally important objectsand advantages Will become apparent'as, the description of my apparatus proceeds, but

While I have in'the present instance defined for the. sake of illustration an apparatusof. a

5 certain specific form, it will be understood accessible, replaceable, and easily "a pitman' tfl connected driven. by means, not shown,

pipes (15) back and forth,'the. strokes being regulated as?toiength'bythepositions o'f-the that; I do not desire thereby to limit myself. except as may be indicated :by the scope. of

the claims appended hereunto and forminga part of-this specification-, v In the drawings wherein illustrated an embodiment of my invention. Figure l is a side elevation of my apparatus, partly diagrammatic, and partly broken away, to. :show certain. detailsothereof,

Figure n v ew thereof partly broken away, v

. Figure 3 is a detail view' 'of theheoting and agitating elements of my apparatus, and

Figure 4 is "a. connection which I employ to enable me to swing my filler discharge pipe over the surface of the-asphalt in the kettle.

In thedrawings wherein like characters of reference are used-Etc designate lik orsimilar parts throughout the several vieWs-;

detailview'of'the universal I The numeral designates a screw or other type of conveyor for transporting the filler "(claydust orr'the like) from; a. 'snspension machine such as described inimy' 'copending 'application filed Decemberyltith, 1926, Serial Number 1551,1411, 'Theconvey'or (1) is mounted in a housing (2) supported on a raisedplatform ("3) -having discharge openingsift)" therein as shown by dotted lin s in-tliigureel. The openings; (i) are provided with-slide valve-elements-fi) oper- 'ated manually byfa rod 6-) andilever- '(Z) pivotally snspendedfrom: a. suitable baseas at (8?): Below veach dischargo'openingand suspended from the platform '(3) aswby brackets (9))is ashopper (10) leading to a 'bellishapedbrsemi-spherical hollow member (11);, Each member-s (11 a pin (12),iand' extendsthrough an opening (13) toppiyotal engagement in} thehead ('14) of. a-svertioally arranged down :pipe (15),.

By the aforementioned means each yplpe, (15) each of which inturn is suspended from the platform 3) v.-=loe'neath a discharge opening (4.) -:-Ad ustably carried upon each of the pipes, (15) isaf'strap (1'6) to'which iszpivoted with a'crank shaft straps (16) thereon."

is provided with is-swingablyhungfrom its member (11),

Upon the lower end of each pipe (15) is a coil, or loose extension (21) which is adjustable in position on the pipe by a chain (22). Below each of the pipes (15) is an asphalt kettle (23), and around each kettle is a platform (34). The kettles are supported on suitable bases (24) preferably of brick or like construction. The pipes (15) swing over the surface of the asphalt in the kettles to discharge the filler material (clay dust or the like) from the conveyor (1), andthe strokes of the pipes are regulated to cover asmuch of the surfaces as possible, which in some cases is the whole exposed surface of the asphalt; the cuffs or extensions' (21) being adjusted to be slightly spaced from the surface of the asphalt.

Asphalt is loaded into the kettles through service pipes (25) and the mix of asphalt and filler is discharged ,or unloaded through connections (26). n order to properly mix the filler with the asphalt it is desirable that the same be maintained at a boiling or high temperature, and to this end I provide a plurality of pipe coil banks (27), each bank being spaced from the others by a plate (28), and the whole covered by a plate (29). These coils are connected with a live steam line (30); a-suitable valve (31) being provided to regulate thedelivery of steam there- In order to agitate the bodies of asphalt in the respective kettles to properly mix the filler therewith, I employ both compressed air and live steam, same being delivered through service pipes (32) and (33), from which down pipes (35) connect with spaced vent pipes(36) on the bottoms of the kettles, below the coils. From each down pipe (35) is a bypass (37) to air line (33) so that either air or steam, or both air and steam may be delivered to the vent pipes (36) by adjustment of valves (38), and the quantity of each also regulated. The vent pipes (36) have a plurality of openings (39) directed down, or toward the bottoms of the kettles, and the vent pipes are spaced from the heating coils by angle irons (410). A

suitable drain line (41) is provided for the heating coils in which is interpolated a valve (42) for opening and closing the same.

The operation of my apparatus-is as follows; asphaltic material is projected into the kettles (23) through connections (25) from a storage tank (not shown). The kettles having been filled to the desired level say to the dot-and-dash lines in Figures 1 and 2, steam is directed into the coils (27), through pipe (30) by opening valve (31) and the asphalt raised to a boiling temperature or to a very high temperature above the boiling temperature. It is kept at this temperature while the operation is com- .pleted. Filler material (clay dust or, the

like) is delivered to the pipes (.15) from conrelationship between the discharge end of the pipes and the level of the asphalt; As the filler is fed into the kettles, the asphalt is agitated by causing exhaust of air, or air and steam, or steam through the Vents (39) in pipes (36), same being regulated by valves (38). It has been found that ordinary pneumatic agitating apparatus becomes clogged and inoperative because of asphalt passing into and congealing within the vent openings of the vent pipes. By the use of live steam or air and steam, the openings are kept open and clear by reason of the action of the steam, and this action is facilitated by forming the vent openings in the bottoms of the pipes, facing the bottoms of the kettles, instead of in the tops of the WVhile in the foregoing, there has been illustrated in the drawings and described in the specification such combination and arrangements of elements as constitute the preferred embodiments of .my invention, it is nevertheless desired to emphasize the fact that interpretation of the invention should only be conclusive, when made in the. light of the subjoined claims.

I claim filler comprising a receptacle for'holding the mixture,means for discharging air and steam into the receptacle for agitating the contents thereof, and' independent means for 4. Apparatus for mixing asphalt with filler comprising a receptacle for holding the 1. Apparatus for mixing asphalt ..with' I separately regulating the relative amounts of regulating the V filler comprising a receptacle for holding the said means and the surfaceof the asphalt,

fluid under presfor heating the mixture,

mixture, means for heating the mixture, swingable means for distributing the filler upon the surface of the asphalt, means for regulating the stroke of said swingable means, means for introducing steam and air into said receptacle to agitate the contents thereof, and means for regulating the amount of steam and air delivered into said receptacle.

5. Apparatus for mixing asphalt with filler comprising a conveyor for the filler, a receptacle for holding the mixture, means swingable means for directing the filler from the conveyor upon the surface of the asphalt, means for regulatlng the discharge from the conveyor to said sWingable means, means for regulating the stroke of the swingable means, means for introducing steam and air into the recepjacle and directing the same toward the bottom of the receptacle to agitate the contents thereof, and means for regulating the amount of steam and air delivered into said receptacle. 7

In testimony whereof, I afiix my signature hereunto.

BAYLUS E. EARLE. 

